Product DescriptionProduct Specification:Product Name: Shaft Plum CouplingType: Plum ShapedShaft Usage: 5mm to 8mm / 0.19inch to 0.31inchSize: L25mm x D20mm/0.98inch x 0.79inch( L*D)Material: Aluminum Alloy,Polyurethane,Surface oxidation treatmentMain Color: Silver Tone,RedWeight: 34gThe shaft couplers are chiefly used for CNC machines,servo motors, spindle, step motor etcPackage Content:2 x Shaft Plum coupling#productDescription h3 {margin: 0.75em 0px 0.375em -1px;}